DR650 3rd Gear Broke on Me :(

I guess everything breaks sometime or another. At 21,000 miles on my bike 3rd gear decided to break in half. Here are pictures of what happened.

At least it isn’t a huge deal to fix it. Just annoying I have to wait a week for parts to show up before I can ride again.

Edit

here is a picture showing the gear and the surface of the break. The silver parts are apparently the only parts that were holding the gear together. The darker parts of the break are aged and you can clearly see it was probably cast that way and has been cracked since the bike was new. Good thing it decided to break close to home while I was pulling out from a stop. If it would have broke while going 60mph it probably would have destroyed the motor and made me crash.